A new class of Bianchi type I viscous fluid universe with a time dependent cosmological term
Summary: A new class of Bianchi type I viscous-fluid cosmological models with a variable cosmological constant are investigated in which the expansion is considered only in two directions, i.e. one of the Hubble parameter (H1 = A4/A) is zero. We have considered four cases: (i) coefficients of bulk (...
| Permalink: | http://skupnikatalog.nsk.hr/Record/nsk.NSK01000720151/Details |
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| Matična publikacija: |
Fizika B (Zagreb) 17 (2008), 1/4 ; str. 393-404 |
| Glavni autor: | Pradhan, Anirudh (-) |
| Ostali autori: | Rai, Anju (-), Otarod, Saeed |
| Vrsta građe: | Članak |
| Jezik: | eng |
| Predmet: | |
| Online pristup: |
FIZIKA B |
| LEADER | 01773caa a2200313 ir4500 | ||
|---|---|---|---|
| 001 | NSK01000720151 | ||
| 003 | HR-ZaNSK | ||
| 005 | 20110325141947.0 | ||
| 007 | ta | ||
| 008 | 091120s2008 ci ||| ||eng | ||
| 035 | |9 (HR-ZaNSK)722731 | ||
| 035 | |a (HR-ZaNSK)000720151 | ||
| 040 | |a HR-ZaNSK |b hrv |c HR-ZaNSK |e ppiak | ||
| 041 | 0 | |a eng |b hrv | |
| 042 | |a croatica | ||
| 080 | |a 52 |2 MRF 1998. | ||
| 080 | |a 51 |2 MRF 1998. | ||
| 100 | 1 | |a Pradhan, Anirudh | |
| 245 | 1 | 2 | |a A new class of Bianchi type I viscous fluid universe with a time dependent cosmological term / |c Anirudh Pradhan, Anju Rai and Saeed Otarod. |
| 504 | |a Bibliografija: 44 jed | ||
| 504 | |a Sažetak | ||
| 520 | 8 | |a Summary: A new class of Bianchi type I viscous-fluid cosmological models with a variable cosmological constant are investigated in which the expansion is considered only in two directions, i.e. one of the Hubble parameter (H1 = A4/A) is zero. We have considered four cases: (i) coefficients of bulk (x) and shear (h) viscosity are taken as constant, (ii) x and h are considered to be inversely dependent on time, (iii) L is taken as inverse square of t and (iv) x and h are considered as proportional to scale of expansion in the model. The cosmological constant L is found to be positive and is a decreasing function of time which is supported by results from recent supernovae Ia observations. Some physical and geometric properties of the models are also discussed | |
| 653 | |a Kozmološki modeli |a Teorija relativnosti | ||
| 700 | 1 | |a Rai, Anju | |
| 700 | 1 | |a Otarod, Saeed | |
| 773 | 0 | |t Fizika B (Zagreb) |x 1330-0016 |g 17 (2008), 1/4 ; str. 393-404 |w nsk.(HR-ZaNSK)000007331 | |
| 981 | |b B12/08 |p CRO | ||
| 998 | |a rado091120 |c rpeo110325 | ||
| 856 | 4 | 2 | |u http://fizika.phy.hr/fizikab.htm |y FIZIKA B |